These guys basically stole users funds back in Dec 2017-Jan 2018, hundreds of tx's labeled as PAID that were never sent through the blockchain, many users had the same problem and are still missing
BTC Deposits from there even after sending support tickets, support then flags them as having been paid and does nothing about it, at the same time they also removed their trading graph intervals (Hours/Days/Weeks) and replaced it with a 24-Hour graph only that is absolutely pointless as you can't see previous days trade/price/volume history before that...
Stay the F*ck away from there !